Locomotive fire-extinguishing apparatus



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L. E. TRUESDELL.

LOGOMOTIVE FIRE BXTINGUISHING APPARATUS.

No.380,956. A PatentedApr.10, 1888.'

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Hurrah STATES ATENI tribe- LPGIUS E. TRUESDELL, OF BRISTOL, NEW HAMPSHIRE.

LOCOMOTIVE FIRE EXTINGUlSHlNG APPARATUS.

SPECIFICATION forming part of Letters Patent No. 380,956, dated April 10, 1888.

Application filed May 9, 1887.

To aZZ whom it may concern.-

Be it known that I, LUcrUs E. TRUESDELL, a citizen of the United States, residing at Bristol, in the county of Grafton and State of New Hampshire, have invented certain new and useful Improvements in Locomotive Fire- Extinguishing Apparatus, of which the fol lowing is a specification.

The object of this invention is to provide a simple and sure means for an instantaneous discharge of steam from the boiler of a locomotive-engine directly into the fire-box for extinguishing the fire in time of collision or other similar accident; and the invention consists in connecting the fire-box with the boiler by means of suitable tubes and a valve or valves, and means whereby said valves are made to admit steam to the fire-box automatically at time of collision.

In the accompanying drawings,forming part of this specification, Figure 1 represents a sectional side elevation of a locomotive provided with my improved extinguisher, and Fig. 2 a detached sectional view of the attachment.

Similar letters represent corresponding parts.

A is the locomotive-boiler, and B its firebox. A pipe, 0, may tap the boiler either on its side or sides, or it may pass into its end near the top and within the cab P;

Underneath the floor p of the cab P some suitable automatic valve may be placed, connecting the pipe 0, coming from the boiler, with the pipe 0, entering the fire-box. A convenient form of valve is shown at D, in which the valve proper, d, and its valve-stem d are closed by means of a toggle, the outer end of one of its arms, E, being connected by pivot either to said valve-stem or a casting, (1 attached thereto, and the outer end of the other arm, E, to the bedframe R of the locomotive.

Acasting, F, uniting the arms E E by means of pivot f, is provided with asocket, to which is threaded a screw-shaft, G, having one end Serial No. 237,546. (No model.)

rigidly secured within a suitable nut or head, g, which may be provided with holes in its sides for receiving a turn-pin or other convenient means for turning the same. This nut or head 9 rests upon a heavy movable block, H, which is supported upon abar, R, which may be attached to the frame R by stay rods or bars 1. A packing-box, D, may be provided for the valve D. 1

The valve may be set up as tight as required by turning the nut or head 9 and straightening the arms E E, and thus prevent the passage of steam from the pipe 0 to the pipe 0, and in case of a sudden collision of the engine with another or a stationary object or car the block H will slide off from the bar R, as indicated by dotted lines in Fig. 2, when the steam will immediately open the valve proper, d, and enter the fire-box B and extinguish the fire.

Having described my invention,what I claim, and desire to secure by Letters Patent, is-

1. In a locomotive'engine, a steam pipe or pipes for conducting live steam from the boiler to the. firebox, a suitable valve for closing the passage for steam, and operating mechanism whereby said valve may be automatically opened in case of accident, comprising a toggle and a movable supporting-block for same, all operating substantially for the purpose set forth.

2. In a locomotive-engine, a steam-pipe for conducting live steam from the boiler to the fire-box, a suitable valve, and operating mech anism whereby said valve may open automatically in case of sudden jar or accident, comprising a toggle, an adjustable supporting shaft for same, and a movable block or weight upon which said supporting-shaft rests, all operating substantially for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

LUCIUS E. TRUESDELL.

Witnesses:

J. B. THURSTON, NATHANIEL E. MARTIN. 

